Apparatus for treating exhaust gases



Jan. l, 1935. M. H, woLFF VIUPRA'IUS'fFOR TREATING EXHAUST GASES Filed Aug. s, 1951` QWZWS Patented Jan.v1, 1935 i n l L,

p APPARATUS" non TRETING `Exinfms'r `GASES..`

f K j clanes@ (o1. 2614104) This invention relates to:apparatuslfortreating` the' products of combustion emanating from a combustion chamber, and is particularly adapt-` ed for use in conjunctionfwith, internal; combusf tion Iengines having `mulers ,operatively related `to the exhaust manifold' thereof. i

Onev object ofthe present invention is::to;pro vide a device or apparatus usedin" eliminating or` modifying theobnoxious character of the products of `combustion resulting from, incomplete combustion' of fuelin the combustion chambers.`

4Another object of the inventionis topl'ovidea device whereby the products of combustion may be combined or mixed withxzairin a'` chamber or compartment before beiner ldischarged i'from the Wdevicep l or rear end of the muffler 5 `is provided `with an Another object of the inventionjis to-provideg means for supplying a neutralizing anddeodoriz-a ing agent to said compartmentinv amannerftoY betaken upby the air and.commingledwitlithevv a! y 111:1 'e between-theportion14 and the lower side of the -A further object of the-invention isxtoiproyide.` f aLdevice `whichnis simple fin,.construc`tion,eco- ,l

nomical tomanufacture, ,and whichA may bereadily attached `lto imufers: of motor,` vehiclesladjaf gases of combustion.

cent "theidischargeyend thereof.`

vA stili further object of the mventinisiclim-f.

f stance, with an inclined 'portion 20 preferably prove devices of the character described in sundry detailsherei'nafter referred to and Aparticularly:

beyond the discharge-end of the tubular mem-- pointed out in therappended claimsg; f u,

One embodiment of the 'present` invention is` shown for illustrative purposes inuthe accom-l panyin'g'drawing,inwhich` 'i i 1` is aV central longitudinal sectional `elevationalfview ofmy improved apparatus `illustrat-V ing its. application to an i ordinary-type of muffler:-

used on motor vehicles, and `taken substantially as indicatedby the line lffl in Zl'l'igs.` 2: and 3;;

Fig. 2 is an end viewoftheLstructure, shown ,in

lig.V 1 asviewedfrom theleftend thereof ;;and Fig; 3 is anenlarged transversev sectional `elevation taken substantially as indicated-by the;-V

'In the embodiment shown'in the drawing, a muier of ordinary type, indicated as a whole by the numeral 5 is provided, adjacent its forward end, with a pipe 6 connected to a conduit '7 adapt-` ed to communicate with the exhaust manifold of an internal combustion engine, such as is commonly used in motor vehicles, while the opposite exhaust pipe 8 through which the gases of combustion are discharged after passing through the muiiier. The illustrative embodiment of the present invention comprises a tubularmernbei` `9 tudinally extendingupper edge portions 16 rigid- Iy secured to the sides of the mu'ier casing 17 by` a conduitorv `tube 25 i-s operatively related at one` extending beyond the discharge end of the .ex

haust pipe 8 andsecured theretoby screwslO;

thetubular member 9 having a somewhat greaterl insidediameter than theoutside diameter ofthel.;

exhaustfpipe 8, and being spaced therefrom bym means of a spacer block llin a manner toiprovide` an air passage 12 `between the exhaust .pipe` 8 and-the inner surfaceof the'tubular member 'r9.5

suitably supported on the muiiier15 is a hous-` side oft-the muffler `5 and 'spaced therefrom as1,

indicated at,15,`the portion 14 havingits long,

welding or other-suitable means, while the forwardfannularedge 18 of the portion 14 is prefer-r "ablyfiiared outwardly to receive` a substantial.

volume of air for` passage through the space 315` a lwhole by the numeral 19 adapted toisurround comprising a rearwardly` i the `exhaust pipe 8 and the tubular member` 9,5* theportionflg being provided, inthe presenting adjacent its lower side and adapted zto extend ber:9.""

The; portion 20 is provided with a preferably* means.A The pad 22 is intended to besaturat'ed with a suitable neutralizing and deodorizing agent in fluid form;` and for supplying fluid to the padri offits ends tothepad 22 through the coverplate' elongated aperture V21` ,adapted to receive a pad c f 22 of-:absorbent material suitably mounted ona i cover plate 23 adapted toybe secured to` thezin-v i clinedfgportion 20 `by screws 24or other suitable 23 adjacentftheir upper ends and at its'oppositej, end is adaptedxto communicatewitha source of..` i fluidisupply indicated, in u the 1 present instance;

as a receptacle 26 which may be suitably mounted on a convenient part of a vehicle and positioned preferably above the discharge end of the tube 25, from which uid may be fed` by gravity to the pad 22, `and by reason of the discharge end of the tube 25 being positioned adjacent the upper end ofthe pad 22, the iiuid deposited in thepad` will flow by gravity throughout the length of the pad towards the lower end thereof. If desired, the

ow of fluid through the tube 25 may be controlled by any suitablemeans as, for example, by a valve 27 positioned between the receptacle 26 and the discharge end of the tube.

' stantial portion of the carbon-monoxideinherent* padfis:` saturated andicarryfiuto adjacent :thezfdise' charge endzor 'the housingswhere iti is mixed with:

in such gases, while the successive exhaust impulses discharged from the end of theftubulan' member 9 will draw a portion ofthe air entering vthe space 15 across the surface"ofit-hepadi221ina` manner to take up and absorb a quantityjoi the neutralizing and deodorizing fluid with which the theexhaustl gases. for` neutralizingi the. gas'esk chemicall action:Y and. dissipating.''theY obnoxious: od'oi's contain'ed'in. the products?oficombustiorn.

It'will be' observedfalsorthat when` the: munter' rectionfasby the"Inovementoi aivehicleionfwhich tiaii-volume' off air' to Vbe passedithrcughbthe spaces mandilfziandfacrossthegpad22,1tnereby prlovi'dix'ig.r a pressure` to :assisti'n'e vacuum created byitli'eX exi haastKY impulses; for: passing@ the.1 fairs' throng-hf the;

housingf with: even l greater.' velocity! than: whenil themuferfisstationary-L. Y Y v litwillbeiiurtherobs'ervedi that thee present-inwl venti'onl provides: apparatus",` fbr eiTectual1yfconr-- binin'gfthe vapors? of: a neutralizing;`andY deodor-v housing through the passage 15,!thereby1matevrialliya` dilutingl the dangerous carbon-monoxide *gasl andfrnodiiyingor'eliminatingr obnoxious odors-V 'col'rtined' in: theI exhaust gases` discharged.`r` from the exhaustpipe* or other' discharge means-con'- berfofi internal combustion engines'.

Obviously the present'. invention' is not limited. tothe4 precise construction: 'an'df arrangementY shown and described, as the same may be various` lvm'odiedi Moreover, `alltliefeaturesJ oi the in'- venti'on need'. not be: usedi conjoint1y;fas2tl'1e same. mayrfbeu'sedf to advantage invariouslfyf diierentl combinations"andlsub'combinations Whats-I claim as newand: desire to secure'byf LettersPatent isf: i

11;-In aidevice of the class! described, thecom'w binatioirwitlrlai. muffler' casing having an. exhaust pipe; operatively' related to one off itsi end' por:-y tions=;.1of1 a housing mounted onf said casing. in spaced:relationfk thereto and: having a portionsurf roundingand;spacedirom said pipe, saidiho'usingrbeing open at' its ends and taperedtoward[itsvv rear end portion to extend beyond the discharge end of said pipe, and a pad of absorbent material positioned insaid housing adjacent the outer 4end of said pipe.l

2. In a device of the class described, the cornbination with a muiiier casing having an exhaust pipe operatively related to one of its end portions, of a tubular member mounted on and surroundingz saidzpipe4 in. spaced relationV thereto and extending; beyond the end `tliereofg al. housing .v

mounted on said muiiier casing in spaced relation thereto and having a portion surrounding and Y spaced ,from said Atubular member and pipe, said housihgbeihgfop'en' at its ends and tapered to- Ward its rear end portion to extend beyond the dischargeaend of said tubular member, a pad of absorbent material` positioned in said housing adjacent theendr ofu saidi pipe, and means for ccnductingriiuidil to said pad.

3. In a device of the class described, the combination'rwithl a: m'uiiier 'casing having an exhaust pipe`v` operativelyi-r related* toffone' of its. end. por:-

tionsfofl al tubular member surroundingv said. pipe .1,

inspacedi relation'i thereto" and; extending beyond: the discharge en'dfthereof, a. housing having; onei of its ends extendingansubstantial distance: along;4

saidirnuiiler oasingin. spaced-'relation thereto? and having-fA itsi longitu'dinaliside'el edges securedto saidl f casing.; the opposite'uend-t of saidi housing surroundingfsa'idl tubular! member. and pipeV and be ing*e tapered toi 'provideban inclined portion adjae centthe dischargefendof. saidmember, andi a pad ofz absorbentfmateriali: positioned in the inclinedf.

porti'o'n o'isaid housing.-. l

4*; Inra1devicefottle class described, the come,

pipecp'erativelyf related: to= one of its endpor.-

' bination with a muier casing having an exhaust;

tionsg off a! tubula-rfmemberf surrounding. saidzpipe.

in? spaced relation theretol an'df: extending beyond" dischargev` endi there'ot, ahousing having one of its ends extending forwardly'a substantial dis.- tancei along! the: lower' side`v of said: muflier' casing?A inl space'd relation thereto and?. having its: upper` longitudinal;V edge. portions; secured` toi op' positieu sides of-f said cas-ing,` the' opposite' end. of

said housing surrounding f saidf' tubular* member.

andfpip'eand being' tapered to provide an inclined lower` portion. s'tdjacent the. discharge end of saidf:l

membe'n al pad: of absorbent: material? removably' mounted in the inl-:'l'ine'd!portionf` of saidf housing, and means forrsupplying'. fluid to said'. pad:

Ima device oftheiclass described, the combination with a muiiler casingfh'aving an exhaust pipe maeratively-` elate'd'tofne of its" end por.- tionsg. otiahousing mounted onsaid casing inf spacedlrelatiomtheretoi andl having Y a' portion surroundingand spaced`fromzsaid"'pipe, said housing being open 'at'. its'. ends aniilftapered toward its rearfendfportioni to' extend beyond Vthe discharge end ofi said pip'e,. and a` pad or absorbent materia-li positioned inl sai'd` housing between the open ends thereof.; i i

i MAXI-I1 WOLFF. 

